Nishihamasadacho, Matsue, Shimane, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
February Air Quality Analysis
Nishihamasadacho, Matsue, Shimane, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (12th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 56 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 11th Feb - 12th Feb 2026
Nishihamasadacho, Matsue, Shimane, Japan
7 AM11th Feb 2026
5 PM
6 AM12th Feb 2026
76AQI
10AQI
69AQI
38AQI
In the last 24 hours,
Nishihamasadacho's AQI reached its highest point of 76 at 10 AM during the Day, while the lowest point, 10, was recorded at 1 PM during the Day between 11th Feb and 12th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Nishihamasadacho, Matsue, Shimane, Japan
5°C4/8°C
9°C4/15°C
10°C7/13°C
9°C6/12°C
8°C6/9°C
8°C4/13°C
4°C1/9°C
1°C-1/3°C
1°C1/2°C
3°C1/5°C
4°C3/5°C
3°C2/5°C
3°C0/6°C
5°C3/7°C
4°C2/7°C
4°C2/6°C
4°C3/5°C
4°C2/6°C
4°C3/6°C
4°C3/7°C
4°C2/7°C
6°C2/12°C
9°C5/12°C
7°C4/9°C
3°C2/6°C
0°C-1/1°C
0°C-3/5°C
3°C-3/8°C
6°C5/9°C
6°C3/9°C
48AQI
31AQI
41AQI
30AQI
2026 Days Vs Air Quality
Nishihamasadacho, Matsue, Shimane, Japan
88%
38
12%
5
Total number of days with different AQI categories in last 44 days in 2026 (321 days remaining)
Under WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2026, 88% of 44 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Nishihamasadacho, Matsue, Shimane, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
17AQI (US)
16AQI (US)
11AQI (US)
21AQI (US)
42AQI (US)
20AQI (US)
24AQI (US)
33AQI (US)
15AQI (US)
23AQI (US)
32AQI (US)
21AQI (US)
29AQI (US)
23AQI (US)
37AQI (US)
61AQI (US)
59AQI (US)
50AQI (US)
40AQI (US)
28AQI (US)
10AQI (US)
17AQI (US)
33AQI (US)
47AQI (US)
12AQI (US)
14AQI (US)
44AQI (US)
21AQI (US)
13AQI (US)
37AQI (US)
36AQI (US)
42AQI (US)
49AQI (US)
31AQI (US)
35AQI (US)
52AQI (US)
52AQI (US)
13AQI (US)
12AQI (US)
35AQI (US)
41AQI (US)
50AQI (US)
56AQI (US)
29AQI (US)
39AQI (US)
No. of days
202631AQI (US)
Highest AQI (US) recorded in
February39AQI (US)
Lowest AQI (US) recorded in
January29AQI (US)
202541AQI (US)
Highest AQI (US) recorded in
June46AQI (US)
Lowest AQI (US) recorded in
September28AQI (US)
202435AQI (US)
Highest AQI (US) recorded in
April49AQI (US)
Lowest AQI (US) recorded in
July23AQI (US)
202337AQI (US)
Highest AQI (US) recorded in
April51AQI (US)
Lowest AQI (US) recorded in
August24AQI (US)
202241AQI (US)
Highest AQI (US) recorded in
September74AQI (US)
Lowest AQI (US) recorded in
August27AQI (US)
202135AQI (US)
Highest AQI (US) recorded in
May42AQI (US)
Lowest AQI (US) recorded in
July29AQI (US)
202035AQI (US)
Highest AQI (US) recorded in
August51AQI (US)
Lowest AQI (US) recorded in
September24AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Nishihamasadacho's annual 2026 AQI (US) (31) shows an average percentage change of -15.02% (improved AQI (US)) compared to previous years: 2020 (35), 2021 (35), 2022 (41), 2023 (37), 2024 (35), 2025 (41).